A U.S. Air Force Special Operations MC-130 Combat Talon II has dropped the first operational GBU-43B MOAB (Massive Ordnance Air Burst) on a cave complex target in the Achin district of Nangarhar province, Afghanistan. Intelligence indicated members of the so-called Islamic State were using the cave complex. Both personnel and equipment were targeted in the strike that occurred at approximately 1800 hr.s local.

The massive, 11-ton, parachute deployed GBU-43B is the largest conventional air dropped weapon ever employed by the U.S. military. The “MOAB” produces shock, overpressure and blast effects equal to tactical nuclear weapons without residual radioactive fallout or the political ramifications associated with nuclear weapons.

The GBU-43B MOAB is deployed from a specially adapted MC-130 Combat Talon II using a system of rollers and a deployment sled. The bomb is attached to the deployment sled then pulled from the rear cargo ramp using a drogue parachute. Once pulled out the back cargo door of the MC-130 the sled falls away from the 30-foot long bomb. The bomb uses guidance wings and a system of stabilizers to maintain consistent ballistic flight trajectory and control its descent rate for more precise guidance. The MOAB uses a satellite guidance system along with internal gyros. GPS target coordinates are initially slaved from the launch aircraft then programmed into the weapon prior to release in close proximity to the target. Once released at medium to high altitude depending on target stand-off requirements the weapon uses its internal GPS for its terminal guidance to the target.